Ac Power System; Battery Power System; Charging The Battery Pack - Asus L7 User Manual

Notebook pc
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AC Power System

The Notebook PC power is comprised of two parts, the power adapter and the battery power sys-
tem. The power adapter converts AC power from a wall outlet to the DC power required by the
Notebook PC. The battery pack consists of a set of Lithium-Ion (Li-Ion) battery cells housed to-
gether. There is one battery pack inserted in the Notebook PC. The AC Adapter's primary function
is to provide power to the Notebook PC which also charges the battery pack. When the power
adapter is connected to the Notebook PC, it provides power to the Notebook PC and the integrated
battery charger as long as it is plugged into an electrical outlet.

Battery Power System

The Notebook PC is designed to work with a removable battery pack located inside the battery pack
compartment. A fully charged pack will provide several hours of battery life, which can be further
extended by using power management features through the BIOS setup. The battery system imple-
ments the Smart Battery standard under the Windows environment, which allows the battery to
accurately report the amount of charge percentage left in the battery. Additional battery packs are
optional and can be purchased separately through a Notebook PC retailer. Before using the Note-
book PC on battery power for the first time, check the battery icon in the Windows task bar to make
sure that the battery is fully charged. Charging the battery takes a few hours when the Notebook PC
is powered OFF.
Lithium-Ion (Li-Ion) Battery Advantages
(compared with traditional Nickel Metal Hydride (NiMH)
No memory - means connect the power adapter anytime you like for maximum convenience. You
don't have to wait until the battery is completely used up.
No overheating - means safer and cooler usage and charging. This is better for your battery and your
Notebook PC, so don't get burned with cheaper battery packs!
Higher capacity vs. weight - means longer usage per charge. You no longer have to carry a dozen
heavy battery packs to get through the day because Li-Ion battery packs are lighter and more effi-
cient than NiMH battery packs.
Longer life - means fewer battery purchases. This cuts down your battery replacement cost.

Charging the Battery Pack

You can charge the battery pack by using the power adapter. When the power adapter is plugged in,
the inserted battery pack will automatically recharge whether your Notebook PC is ON or OFF. It
takes a few hours to receive a full charge when the power is OFF but takes much longer when the
Notebook PC is in use. The battery is charging when the orange LED is flashing. When the LED is
no longer flashing, the battery pack is fully charged.
NOTE: The battery will stop charging if the temperature is too high or the battery voltage is too
high.
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